How were the diverse, multi-ethnic peoples of the balkan region once held together?

The Balkan region is a very diverse ethnic and linguistic region. Former Yugoslavia was the attempt to create permanent peace in this region, especially after WW II, through so-called "brotherhood and unity" among the nations. Yugoslavia included many ethnic and religious groups, which were held together by a strong communist government, with its charismatic leader Josip Broz Tito. But in 1990-ties the forgotten conflicts between the different nations escalated ( Serbs and Croats, Serbs and Muslims, Croats and Muslims, the conflict in Kosovo ).
The diverse, multi - ethnic peoples of the Balkan region once held together through the Republic of Yugoslavia and the idea of "brotherhood and unity". 

Joe ran 130 yards because 3 feet make 1 yard so using this ratio 390 feet make 130 yards.

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons